The police, which claimed to have solved the double murder case within 36 hours of the incident, also recovered Rs 63,000 cash, ornaments made of silver, gold and diamond, three mobile phones and five costly watches from their possession, which they had looted after murdering the couple.
Senior Superintendent of Police Manu Maharaj said those arrested have been identified as Bhushan Yadav, Dharmendra Yadav and Jitendra Yadav, all residents of Karhara village under Ghosi police station of Jehanabad district.
SSP Manu Maharaj claimed that the three killers have admitted that they had strangulated the couple to death and looted cash, jewellery and other valuable items.
The trio said that they had killed the couple on Saturday, news about which became public on Sunday.
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SSP, who had constituted four teams under City SP (Central) for investigation, said that on Bhushan Yadav's information his two accomplices were arrested from Jehanabad.
SSP claimed that the trio had hatched a plan to kill them on Diwali but could not do so and hence they decided to choose 'Kharna', the second day of four day long Chhath festival, for eliminating the couple as most of the people would be engaged in the puja.
The police also questioned some of the people working in the bungalow besides inquiring with the son and daughter-in-law of the couple.